Auto-scaling of an indoor map

a technology of indoor map and auto-scaling, applied in the field of electronic maps, can solve problems such as incorrect scale of indoor map received

Inactive Publication Date: 2014-05-15
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure is related to a computer-implemented method, computer-readable medium, and a system for creating a scaled electronic map of a building floor plan in a local coordinate system. The method includes creating control points on an unsealed electronic map, calculating a primary scaling factor based on the control points, and then auto-scaling the electronic map using the primary scaling factor to generate a scaled electronic map that shows the floor plan of the building. This allows for easier access and understanding of floor plans for building navigation and other applications.

Problems solved by technology

However, in some systems, an indoor map is received that has not been correctly scaled.

Method used

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  • Auto-scaling of an indoor map
  • Auto-scaling of an indoor map
  • Auto-scaling of an indoor map

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Embodiment Construction

[0020]Reference throughout this specification to “one embodiment”, “an embodiment”, “one example”, or “an example” means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Any example or embodiment described herein is not to be construed as preferred or advantageous over other examples or embodiments.

[0021]FIG. 1 is a functional block diagram of a computing device 102 having a scaling engine 104 coupled with a user interface 106. The illustrated example of scaling engine 104 includes a scaling factors block 108, an area calculator block 110, and...

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Abstract

A computer-implemented method of auto-scaling an indoor map includes receiving an unsealed electronic map that shows a floor plan of a building and creating control points on the unsealed electronic map. Each of control points includes an absolute coordinate pair and a corresponding local coordinate pair. The method also includes calculating a primary scaling factor based on the control points. The electronic map is then auto-scaled using the primary scaling factor to generate a scaled electronic map that shows the floor plan of the building.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 726,450, filed Nov. 14, 2012. U.S. Provisional Application No. 61 / 726,450 is hereby incorporated by reference.TECHNICAL FIELD[0002]This disclosure relates generally to electronic maps, and in particular but not exclusively, relates to electronic maps for use in indoor navigation.BACKGROUND INFORMATION[0003]Navigation systems are becoming more and more pervasive in today's market. A navigation system may be utilized to determine a route from a first location to a destination. In some navigation systems, a user may enter a start location and a destination into a mapping application, such as one of the different mapping applications commonly used on a variety of websites.[0004]Navigation systems may be utilized within an indoor environment, such as a shopping mall, to guide a user to a destination such as a department store or a food court, for example. A user may be p...

Claims

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Application Information

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IPC IPC(8): G06T3/40
CPCG06T3/40G09B29/005G01C21/206
InventorSHARMA, ABHINAVDAS, SAUMITRA MOHANMEHTA, CHANDRAKANT
OwnerQUALCOMM INC